WWI Draft Dates – During World War I there were three draft registrations: • June 5, 1917 - all men between the ages of 21 and 31 residing in the U.S. - whether native born, naturalized, or alien[1896 – 1886] • June 5, 1918 - men who reached age 21 after June 5, 1917. (A supplemental registration, included in the second registration, was held on August 24, 1918, for men who turned 21 years old after June 5, 1918.) • September 12, 1918 - all men between age 18 and 45.[1900 – 1873] • There was no US conscription between 1866 and 1917.